Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$(((3-2)-4) \times 5)+3 \times 2+4-$$

Answer

-5-

Solution


Simplify  \(3-2\)  to  \(1\).
\[(1-4)\times 5+3\times 2+4-\]
Simplify  \(1-4\)  to  \(-3\).
\[-3\times 5+3\times 2+4-\]
Simplify  \(-3\times 5\)  to  \(-15\).
\[-15+3\times 2+4-\]
Simplify  \(3\times 2\)  to  \(6\).
\[-15+6+4-\]
Simplify  \(-15+6\)  to  \(-9\).
\[-9+4-\]
Simplify  \(-9+4\)  to  \(-5\).
\[-5-\]
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